Analysis of Highly Directive Cavity-Type Configurations Comprising of Low Profile Antennas Covered by Superstrates

dc.contributor.authorFarahat, Nader
dc.contributor.authorMittra, Raj
dc.contributor.authorLugo, Katherine
dc.contributor.authorMa, Lai-Ching
dc.contributor.authorGomez, Rodney A.
dc.coverage.issue2cs
dc.coverage.volume17cs
dc.date.accessioned2016-03-18T10:36:30Z
dc.date.available2016-03-18T10:36:30Z
dc.date.issued2008-06cs
dc.description.abstractIn this paper we present a technique for designing antenna/superstrate composites to produce enhanced directivities. As a first step, we study the underlying mechanism that governs the performance of theses antennas by studying the canonical problem of a line source in a rectangular waveguide. The above problem is solved by constructing the Green’s function corresponding to the line source in the rectangular guide, one of whose walls is partially reflecting, that is can leak electromagnetic energy into the space external to the guide. The Green’s function for this problem can be constructed by aggregating the multiple reflections from the two walls. Although the above model is only two-dimensional, we show that it can be used to predict the performance of antenna/superstrate composites. We demonstrate this by modeling several highly directive antennas and show that indeed the required characteristics of this type of antennas can be determined from the analysis of the cutoff behavior of the rectangular guide.en
dc.formattextcs
dc.format.extent19-25cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2008, vol. 17, č. 2, s. 19-25. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57186
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2008/08_02_019_025.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectHighly directivity antennasen
dc.subjectfrequency selective surfacesen
dc.titleAnalysis of Highly Directive Cavity-Type Configurations Comprising of Low Profile Antennas Covered by Superstratesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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